babel-preset-silk-node6 with latest Babel plugins

CONTRIBUTING.md

@@ -15,7 +15,7 @@ Silk's key components are open source and we :heart: to receive contributions fr
 The repository generally consists of those parts:
 
 - `babel`: Babel utilities
-- `babel-preset-silk-node4`: Standardized babel configuration
+- `babel-preset-silk-node6`: Standardized babel configuration
 - `bsp-gonk`: Board support package for various Android-like devices
 - `cli`: Commandline tool
 - `device-main`: Device javascript entry point

babel-preset-silk-node4/README.md → babel-preset-silk-node6/README.md

@@ -1,6 +1,6 @@
-# Silk Babel Preset (Node 4)
+# Silk Babel Preset (Node 6)
 
-This is a flattened babel-preset for node 4 ...
+This is a flattened babel-preset for node 6.x LTS ...
 
 This project does not ship with the entire set of babel plugins as npm
 dependencies instead it flattens all the dependencies into a single fast
@@ -19,11 +19,9 @@ babel-node).
 
 ## How to build:
 
-```js
-npm run compile
-
-# Check in index.js to source tree ...
-```
+1. Run `npm run compile`
+2. Check in `index.js` to source tree
+3. Ignore/revert changes to `package.json`
 
 # LICENSE
 

babel-preset-silk-node4/build/compile → babel-preset-silk-node6/build/compile

@@ -13,6 +13,7 @@ check_npm_version() {
 }
 
 main() {
+  npm install
   ./build/stage
   check_npm_version
   npm install

babel-preset-silk-node4/build/stage → babel-preset-silk-node6/build/stage

@@ -18,13 +18,25 @@ const TARGET = path.join(__dirname, '..');
 const PKG_PATH = path.join(TARGET, 'package.json');
 const DEST = path.join(TARGET, 'staging/index.js');
 
-const DEFAULT_BABEL_VERSION = '6.5.0';
+const DEFAULT_BABEL_VERSION = '6.18.0';
 const PLUGIN_VERSION_OVERRIDES = {
-  // 'transform-async-to-generator': 'MY_VER'
+  'syntax-trailing-function-commas': '6.13.0',
+  'transform-async-to-generator': '6.16.0',
+  'transform-es2015-function-name': '6.9.0',
+  'transform-es2015-unicode-regex': '6.11.0',
+  'transform-es2015-spread': '6.8.0',
+  'transform-export-extensions': '6.8.0',
+  'transform-object-rest-spread': '6.16.0',
+  'transform-decorators': '6.13.0',
 };
 
 const PLUGIN_SKIP = new Set([
-  'transform-es2015-generator-return'
+  'syntax-async-functions',
+  'syntax-async-generators',
+  'syntax-function-sent',
+  'transform-es2015-generator-return',
+  'transform-exponentiation-operator',
+  'transform-regenerator',
 ]);
 
 const ADDITIONAL_PLUGINS = [
@@ -42,12 +54,16 @@ const ADDITIONAL_PLUGINS = [
   'transform-decorators',
   'transform-export-extensions',
 
-  // XXX: v8 does not like you to use super.X syntax which is used in our
-  // codebase so we compile our modules down using es2015.
+  // Node does not support the super.X syntax in generators, but our
+  // codebase uses super in async methods (which are compiled down to
+  // generators.) See https://github.com/babel/babel/issues/3930.
   'transform-es2015-classes',
 ];
 
 const es2015Plugins = features.options().plugins.filter((name) => {
+  if (Array.isArray(name)) {
+    name = name[0];
+  }
   return !PLUGIN_SKIP.has(name);
 });